#!/usr/bin/env python3
# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License.

import onnx
import numpy as np
import os
import argparse
from onnx import numpy_helper
from onnx import helper
from onnx import utils
from onnx import AttributeProto, TensorProto, GraphProto

def parse_arguments():
    parser = argparse.ArgumentParser()
    parser.add_argument("--output_dir", required=True, help="Path to the build directory.")
    return parser.parse_args()

def generate_abs_op_test(type, X, top_test_folder):
    for is_raw in [True, False]:
        if is_raw:           
           test_folder = os.path.join(top_test_folder,"raw")
        else:
           test_folder = os.path.join(top_test_folder,"not_raw")
        data_dir = os.path.join(test_folder,"test_data_0")
        os.makedirs(data_dir, exist_ok=True)
        # Create one output (ValueInfoProto)
        Y = helper.make_tensor_value_info('Y', type, X.shape)
        X_INFO = helper.make_tensor_value_info('X', type, X.shape)
        if is_raw:
          tensor_x = onnx.helper.make_tensor(name='X', data_type=type, dims=X.shape, vals=X.tobytes(),raw=True)
        else:
          tensor_x = onnx.helper.make_tensor(name='X', data_type=type, dims=X.shape, vals=X.ravel(),raw=False)
        # Create a node (NodeProto)
        node_def = helper.make_node('Abs', inputs=['X'], outputs=['Y'])

        # Create the graph (GraphProto)
        graph_def = helper.make_graph( [node_def], 'test-model', [X_INFO], [Y], [tensor_x])
        # Create the model (ModelProto)
        model_def = helper.make_model(graph_def, producer_name='onnx-example')
        #final_model = onnx.utils.polish_model(model_def)
        final_model = model_def
        if is_raw:
            onnx.external_data_helper.convert_model_to_external_data(final_model, True)
        onnx.save(final_model, os.path.join(test_folder, 'model.onnx'))
        expected_output_array = np.abs(X)
        expected_output_tensor = numpy_helper.from_array(expected_output_array)
        with open(os.path.join(data_dir,"output_0.pb"),"wb") as f:    
                f.write(expected_output_tensor.SerializeToString())

def generate_size_op_test(type, X, test_folder):
    data_dir = os.path.join(test_folder,"test_data_0")
    os.makedirs(data_dir, exist_ok=True)
    # Create one output (ValueInfoProto)
    Y = helper.make_tensor_value_info('Y', TensorProto.INT64, [])
    X_INFO = helper.make_tensor_value_info('X', type, X.shape)
    tensor_x = onnx.helper.make_tensor(name='X', data_type=type, dims=X.shape, vals=X.ravel(),raw=False)
    # Create a node (NodeProto)
    node_def = helper.make_node('Size', inputs=['X'], outputs=['Y'])

    # Create the graph (GraphProto)
    graph_def = helper.make_graph( [node_def], 'test-model', [X_INFO], [Y], [tensor_x])
    # Create the model (ModelProto)
    model_def = helper.make_model(graph_def, producer_name='onnx-example')
    final_model = onnx.utils.polish_model(model_def)
    onnx.save(final_model, os.path.join(test_folder, 'model.onnx'))
    expected_output_array = np.int64(X.size)
    expected_output_tensor = numpy_helper.from_array(expected_output_array)    
    with open(os.path.join(data_dir,"output_0.pb"),"wb") as f:    
        f.write(expected_output_tensor.SerializeToString())

def test_abs(output_dir):
        generate_abs_op_test(TensorProto.FLOAT, np.random.randn(3, 4, 5).astype(np.float32), os.path.join(output_dir,'test_abs_float'))
        generate_abs_op_test(TensorProto.DOUBLE, np.random.randn(3, 4, 5).astype(np.float64), os.path.join(output_dir,'test_abs_double'))
        generate_abs_op_test(TensorProto.INT8, np.int8([-127, -4, 0, 3, 127]), os.path.join(output_dir, 'test_abs_int8'))
        generate_abs_op_test(TensorProto.UINT8, np.uint8([0, 1, 20, 255]), os.path.join(output_dir, 'test_abs_uint8'))
        generate_abs_op_test(TensorProto.INT16, np.int16([-32767, -4, 0, 3, 32767]), os.path.join(output_dir, 'test_abs_int16'))
        generate_abs_op_test(TensorProto.UINT16, np.uint16([-32767, -4, 0, 3, 32767]), os.path.join(output_dir, 'test_abs_uint16'))
        generate_abs_op_test(TensorProto.INT32, np.int32([-2147483647, -4, 0, 3, 2147483647]), os.path.join(output_dir, 'test_abs_int32'))
        generate_abs_op_test(TensorProto.UINT32, np.uint32([0, 1, 20, 4294967295]), os.path.join(output_dir, 'test_abs_uint32'))
        number_info = np.iinfo(np.int64)
        generate_abs_op_test(TensorProto.INT64, np.int64([-number_info.max, -4, 0, 3, number_info.max]), os.path.join(output_dir, 'test_abs_int64'))
        number_info = np.iinfo(np.uint64)
        generate_abs_op_test(TensorProto.UINT64, np.uint64([0, 1, 20, number_info.max]), os.path.join(output_dir, 'test_abs_uint64'))

def test_size(output_dir):
    generate_size_op_test(TensorProto.FLOAT, np.random.randn(100, 3000, 10).astype(np.float32), os.path.join(output_dir,'test_size_float'))
    generate_size_op_test(TensorProto.STRING, np.array(['abc', 'xy'], dtype=np.bytes_), os.path.join(output_dir,'test_size_string'))

args = parse_arguments()
os.makedirs(args.output_dir,exist_ok=True)
test_abs(args.output_dir)
test_size(args.output_dir)



